<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>冷端优化系统 - 检索式分析</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <style>
        :root {
            --primary-bg: #0f172a;
            --secondary-bg: #1e293b;
            --card-bg: #1a2435;
            --accent: #5eead4;
            --accent-hover: #88f3e2;
            --text-primary: #e2e8f0;
            --text-secondary: #94a3b8;
            --text-tertiary: #64748b;
            --border-color: #334155;
            --success: #4ade80;
            --warning: #fbbf24;
            --error: #f87171;
            --power-color: #f97316;
            --load-color: #38bdf8;
            --pressure-color: #8b5cf6;
            --temp-color: #f43f5e;
            --font-main: 'Segoe UI', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background: var(--primary-bg);
            color: var(--text-primary);
            font-family: var(--font-main);
            min-height: 100vh;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(30, 41, 59, 0.6) 0%, transparent 25%),
                radial-gradient(circle at 90% 80%, rgba(94, 234, 212, 0.08) 0%, transparent 25%);
            overflow-x: hidden;
        }
        
        /* 导航栏 */
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-md) var(--spacing-xl);
            background: rgba(15, 23, 42, 0.9);
            backdrop-filter: blur(5px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-bg);
            font-size: 1.2rem;
        }
        
        .logo-text {
            font-size: 1.4rem;
            font-weight: 600;
        }
        
        .nav-links {
            display: flex;
            gap: var(--spacing-xl);
        }
        
        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            position: relative;
        }
        
        .nav-link.active {
            color: var(--accent);
        }
        
        .nav-link:hover {
            color: var(--accent);
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .user-profile {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        .user-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        
        /* 内容区域 */
        .content-container {
            max-width: 1400px;
            margin: var(--spacing-xl) auto;
            padding: 0 var(--spacing-xl);
        }
        
        .page-header {
            margin-bottom: var(--spacing-xl);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .page-title {
            font-size: 1.8rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }
        
        .page-actions {
            display: flex;
            gap: var(--spacing-md);
        }
        
        .action-btn {
            padding: var(--spacing-sm) var(--spacing-md);
            background: rgba(94, 234, 212, 0.1);
            border: 1px solid rgba(94, 234, 212, 0.3);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        .action-btn:hover {
            background: rgba(94, 234, 212, 0.2);
        }
        
        /* 搜索区域 */
        .search-section {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .search-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: var(--spacing-lg);
        }
        
        .section-title {
            font-size: 1.4rem;
            color: var(--accent);
        }
        
        .search-container {
            position: relative;
            margin-bottom: var(--spacing-lg);
        }
        
        .search-input {
            width: 100%;
            padding: var(--spacing-md) var(--spacing-xl) var(--spacing-md) 50px;
            background: rgba(26, 36, 53, 0.7);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 1.1rem;
            transition: all 0.3s;
        }
        
        .search-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.1);
        }
        
        .search-icon {
            position: absolute;
            left: var(--spacing-md);
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-tertiary);
        }
        
        .search-suggestions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-top: var(--spacing-md);
        }
        
        .suggestion-tag {
            padding: var(--spacing-sm) var(--spacing-md);
            background: rgba(26, 36, 53, 0.5);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .suggestion-tag:hover {
            background: rgba(94, 234, 212, 0.1);
            color: var(--accent);
            border-color: var(--accent);
        }
        
        /* 结果区域 */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        
        .result-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: var(--spacing-lg);
        }
        
        .card-title {
            font-size: 1.2rem;
            color: var(--accent);
        }
        
        .card-actions {
            display: flex;
            gap: var(--spacing-sm);
        }
        
        .card-action {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(94, 234, 212, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .card-action:hover {
            background: rgba(94, 234, 212, 0.2);
            transform: rotate(90deg);
        }
        
        .metric-overview {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        
        .metric-item {
            flex: 1;
            min-width: 200px;
        }
        
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }
        
        .metric-value {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        
        .metric-trend {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.9rem;
            margin-top: var(--spacing-sm);
        }
        
        .trend-up {
            color: var(--success);
        }
        
        .trend-down {
            color: var(--error);
        }
        
        .chart-container {
            height: 300px;
            margin-top: var(--spacing-lg);
            position: relative;
        }
        
        .chart-placeholder {
            width: 100%;
            height: 100%;
            background: rgba(26, 36, 53, 0.3);
            border-radius: var(--radius-sm);
            position: relative;
            overflow: hidden;
        }
        
        .chart-grid {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            grid-template-rows: repeat(5, 1fr);
            opacity: 0.2;
        }
        
        .chart-grid-line {
            border-right: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        
        .chart-line {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: flex-end;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }
        
        .chart-point {
            flex: 1;
            position: relative;
            height: 100%;
            display: flex;
            align-items: flex-end;
            justify-content: center;
        }
        
        .chart-bar {
            width: 12px;
            background: var(--accent);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            transition: height 1s ease;
            position: relative;
        }
        
        .chart-bar::after {
            content: '';
            position: absolute;
            top: -4px;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .chart-labels {
            position: absolute;
            bottom: -25px;
            left: 0;
            width: 100%;
            display: flex;
            justify-content: space-around;
            font-size: 0.8rem;
            color: var(--text-tertiary);
        }
        
        /* 指标解释区 */
        .explanation-section {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .explanation-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-xl);
        }
        
        .explanation-item {
            background: rgba(26, 36, 53, 0.5);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-color);
        }
        
        .explanation-title {
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        .explanation-content {
            color: var(--text-secondary);
            line-height: 1.7;
        }
        
        /* 推荐操作区 */
        .recommendation-section {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .recommendation-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-xl);
        }
        
        .recommendation-card {
            background: rgba(26, 36, 53, 0.5);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-color);
        }
        
        .recommendation-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        
        .recommendation-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(94, 234, 212, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }
        
        .recommendation-title {
            font-size: 1.1rem;
            font-weight: 600;
        }
        
        .recommendation-list {
            padding-left: var(--spacing-lg);
        }
        
        .recommendation-item {
            margin-bottom: var(--spacing-sm);
            color: var(--text-secondary);
        }
        
        .recommendation-item::marker {
            color: var(--accent);
        }
        
        /* 响应式调整 */
        @media (max-width: 1200px) {
            .results-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .navbar {
                flex-direction: column;
                gap: var(--spacing-md);
            }
            
            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: var(--spacing-md);
            }
            
            .page-header {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-md);
            }
            
            .page-actions {
                align-self: flex-start;
            }
        }
    </style>
</head>
<body>
    <!-- 导航栏 -->
    <nav class="navbar">
        <div class="logo">
            <div class="logo-icon">
                <i class="fas fa-bolt"></i>
            </div>
            <div class="logo-text">冷端优化系统</div>
        </div>
        
        <div class="nav-links">
            <a href="#" class="nav-link">驾驶舱</a>
            <a href="#" class="nav-link">核心功能</a>
            <a href="#" class="nav-link active">检索分析</a>
            <a href="#" class="nav-link">报表</a>
        </div>
        
        <div class="user-profile">
            <div class="user-avatar">
                <span>U</span>
            </div>
        </div>
    </nav>
    
    <!-- 内容区域 -->
    <div class="content-container">
        <div class="page-header">
            <h1 class="page-title">
                <i class="fas fa-search"></i> 检索式分析平台
            </h1>
            <div class="page-actions">
                <button class="action-btn">
                    <i class="fas fa-file-export"></i> 导出报告
                </button>
                <button class="action-btn">
                    <i class="fas fa-print"></i> 打印
                </button>
            </div>
        </div>
        
        <!-- 搜索区域 -->
        <div class="search-section">
            <div class="search-header">
                <h2 class="section-title">指标检索</h2>
                <div class="search-tips">
                    <i class="fas fa-info-circle"></i> 支持关键词、自然语言和快捷模板搜索
                </div>
            </div>
            
            <div class="search-container">
                <i class="fas fa-search search-icon"></i>
                <input type="text" class="search-input" placeholder="输入关键词或自然语言描述（例如：背压趋势、冷却塔出口水温异常）">
            </div>
            
            <div class="search-suggestions">
                <div class="suggestion-tag">背压分析</div>
                <div class="suggestion-tag">端差变化</div>
                <div class="suggestion-tag">抽汽量异常</div>
                <div class="suggestion-tag">冷却塔出口水温</div>
                <div class="suggestion-tag">风机频率优化</div>
                <div class="suggestion-tag">冷端效率</div>
                <div class="suggestion-tag">历史异常点</div>
                <div class="suggestion-tag">指标趋势对比</div>
            </div>
        </div>
        
        <!-- 结果区域 -->
        <div class="results-grid">
            <!-- 指标概览卡片 -->
            <div class="result-card">
                <div class="card-header">
                    <h3 class="card-title">背压指标概览</h3>
                    <div class="card-actions">
                        <div class="card-action">
                            <i class="fas fa-expand"></i>
                        </div>
                        <div class="card-action">
                            <i class="fas fa-download"></i>
                        </div>
                    </div>
                </div>
                
                <div class="metric-overview">
                    <div class="metric-item">
                        <div class="metric-label">当前值</div>
                        <div class="metric-value">12.8 kPa</div>
                        <div class="metric-trend trend-up">
                            <i class="fas fa-arrow-up"></i>
                            <span>+0.5% (较昨日)</span>
                        </div>
                    </div>
                    
                    <div class="metric-item">
                        <div class="metric-label">预测值</div>
                        <div class="metric-value">13.2 kPa</div>
                        <div class="metric-trend trend-up">
                            <i class="fas fa-arrow-up"></i>
                            <span>+1.2% (未来24小时)</span>
                        </div>
                    </div>
                    
                    <div class="metric-item">
                        <div class="metric-label">推荐值</div>
                        <div class="metric-value">11.5-12.0 kPa</div>
                        <div class="metric-trend trend-down">
                            <i class="fas fa-arrow-down"></i>
                            <span>-5.8% (优化空间)</span>
                        </div>
                    </div>
                </div>
                
                <div class="chart-container">
                    <div class="chart-placeholder">
                        <div class="chart-grid">
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                        </div>
                        <div class="chart-line">
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 65%"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 70%"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 68%"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 72%"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 75%"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 78%"></div>
                            </div>
                        </div>
                        <div class="chart-labels">
                            <span>10-01</span>
                            <span>10-02</span>
                            <span>10-03</span>
                            <span>10-04</span>
                            <span>10-05</span>
                            <span>10-06</span>
                        </div>
                    </div>
                </div>
            </div>
            
            <!-- 多指标对比卡片 -->
            <div class="result-card">
                <div class="card-header">
                    <h3 class="card-title">多指标对比分析</h3>
                    <div class="card-actions">
                        <div class="card-action">
                            <i class="fas fa-expand"></i>
                        </div>
                        <div class="card-action">
                            <i class="fas fa-download"></i>
                        </div>
                    </div>
                </div>
                
                <div class="metric-overview">
                    <div class="metric-item">
                        <div class="metric-label">背压</div>
                        <div class="metric-value">12.8 kPa</div>
                        <div class="metric-trend trend-up">
                            <i class="fas fa-arrow-up"></i>
                            <span>+0.5%</span>
                        </div>
                    </div>
                    
                    <div class="metric-item">
                        <div class="metric-label">环境温度</div>
                        <div class="metric-value">24.5°C</div>
                        <div class="metric-trend trend-down">
                            <i class="fas fa-arrow-down"></i>
                            <span>-1.2%</span>
                        </div>
                    </div>
                    
                    <div class="metric-item">
                        <div class="metric-label">风机频率</div>
                        <div class="metric-value">42.3 Hz</div>
                        <div class="metric-trend trend-up">
                            <i class="fas fa-arrow-up"></i>
                            <span>+3.5%</span>
                        </div>
                    </div>
                </div>
                
                <div class="chart-container">
                    <div class="chart-placeholder">
                        <div class="chart-grid">
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                            <div class="chart-grid-line"></div>
                        </div>
                        <div class="chart-line">
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 65%; background: #5eead4;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 70%; background: #5eead4;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 68%; background: #5eead4;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 72%; background: #5eead4;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 75%; background: #5eead4;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 78%; background: #5eead4;"></div>
                            </div>
                        </div>
                        <div class="chart-line">
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 55%; background: #8b5cf6;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 52%; background: #8b5cf6;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 50%; background: #8b5cf6;"></div>
                            </div>
                            <div class="chart-point">
                                <div class="chart-bar" style="height: 48%; background: #8b5cf6;"></div>
                            </div>
                            <div class="chart-point">
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                            <span>10-01</span>
                            <span>10-02</span>
                            <span>10-03</span>
                            <span>10-04</span>
                            <span>10-05</span>
                            <span>10-06</span>
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        <!-- 指标解释区 -->
        <div class="explanation-section">
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                <h2 class="section-title">背压指标解释</h2>
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                    <i class="fas fa-book"></i> 指标定义、计算方式及影响因素
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                    <h3 class="explanation-title">
                        <i class="fas fa-book"></i> 工程定义
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                    <div class="explanation-content">
                        背压是指汽轮机排汽口处的压力，是衡量冷端系统性能的关键指标。在火电机组中，背压直接影响汽轮机的热效率和发电效率。背压越低，汽轮机效率越高，发电量越大。
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                    <h3 class="explanation-title">
                        <i class="fas fa-calculator"></i> 计算方式
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                    <div class="explanation-content">
                        背压 = 排汽压力传感器读数 (kPa)<br>
                        平均背压 = ∑(每小时背压值) / 24<br>
                        背压变化率 = (当前值 - 前值) / 前值 × 100%
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                        <i class="fas fa-industry"></i> 业务含义
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                        背压是冷端系统运行状态的核心指标，直接影响机组效率和发电量。背压每降低1kPa，机组效率可提高0.5%-0.8%。优化背压是提高电厂经济效益的关键措施。
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                        <i class="fas fa-exclamation-triangle"></i> 常见影响因素
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                        <ul>
                            <li>冷却水温度变化</li>
                            <li>凝汽器清洁度</li>
                            <li>循环水流量不足</li>
                            <li>真空系统泄漏</li>
                            <li>环境温度变化</li>
                            <li>风机运行状态</li>
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                <h2 class="section-title">智能优化建议</h2>
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                    <i class="fas fa-lightbulb"></i> 基于当前背压指标的分析建议
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                        <h3 class="recommendation-title">操作建议</h3>
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                    <ul class="recommendation-list">
                        <li class="recommendation-item">增加#3、#4风机频率2-3Hz</li>
                        <li class="recommendation-item">检查冷却水阀门开度，确保全开</li>
                        <li class="recommendation-item">优化循环水泵运行组合</li>
                        <li class="recommendation-item">调整冷却塔百叶窗角度</li>
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                    <div class="recommendation-header">
                        <div class="recommendation-icon">
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                        </div>
                        <h3 class="recommendation-title">可能原因</h3>
                    </div>
                    <ul class="recommendation-list">
                        <li class="recommendation-item">冷却塔填料结垢影响散热</li>
                        <li class="recommendation-item">凝汽器钛管轻微堵塞</li>
                        <li class="recommendation-item">循环水流量低于设计值5%</li>
                        <li class="recommendation-item">真空系统存在微小泄漏</li>
                    </ul>
                </div>
                
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                    <div class="recommendation-header">
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                        <h3 class="recommendation-title">历史经验</h3>
                    </div>
                    <ul class="recommendation-list">
                        <li class="recommendation-item">2023-06-15 类似工况下，调整风机频率后背压降低0.8kPa</li>
                        <li class="recommendation-item">2023-03-22 清洗冷却塔填料后，背压降低1.2kPa</li>
                        <li class="recommendation-item">2022-11-08 优化循环水泵组合，背压降低0.5kPa</li>
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